Pinkos, nationalists and Remainers – if you’re not worried, you really ought to beIn Britain’s postwar decades, it seems that if your name didn’t appear on a government blacklist then you could never consider yourself an authentic leftie. We all purport to be shocked at how 1950s America went meekly sleepwalking into Senator Joe McCarthy’s paranoid nightmare about the land of the free being kidnapped by the red menace. In Britain, though, the establishment hunt for commie agitators and assorted…